Acts 10:9-15

9 About noon the next day, as they were on their journey and approaching the city, Peter went up on the roof to pray.
10He became hungry and wanted something to eat; and while it was being prepared, he fell into a trance.
11He saw the heaven opened and something like a large sheet coming down, being lowered to the ground by its four corners.
12In it were all kinds of four-footed creatures and reptiles and birds of the air.
13Then he heard a voice saying, Get up, Peter; kill and eat.
14But Peter said, By no means, Lord; for I have never eaten anything that is profane or unclean.
15The voice said to him again, a second time, What God has made clean, you must not call profane.